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Mid Term: Science


Scientific Method 1. Ask a question 2. Form a hypothesis 3. Do an experiment 4. Draw conclusions 5. Communicate results
Control Group The group that gets the normal accommodations
Experimental Group The group that gets tested
Variable Anything in the experiment that will effect the outcome
Independent Variable The variable being tested
Dependent Variable The possible result from testing the I.V
SI system (International System of Units) 1. Length- Meters 2. Volume- Liters 3. Mass- Grams 4. Weight- pounds- Force of gravity a pon one object 5. Time- Seconds 6. Temprature- Kelvin and Celsius
Cells Smallest Unit of Life
Classifying Organisms 1. Respond to Stimuli 2. Made up of cells 3. Maintain Homeostasis 4. Reproduce 5. Grow and Develop 6. Need Nutrients
Organization 1. Uni or Multi cellular 2. Use energy 3. Have DNA ( Responsible for every trait in every living thing )
Classification The arrangement of organisms into orderly groups based on their similarities
Taxonomy The science of Classification
Aristotle Classified on the basis of: "Red Blood Animals Environment The size and shape
Carolus Linnaeus 1.Classified organisms based on specific traits 2.Placed Organisms in 2 categories (Kingdom, Phylum) 3. Used Latin to name living things (Easier to communicate)
3 Domains Archaea- unicellular, live in the most extreme conditions Bactria- Simple unicelluar organisms Eukarya- More complex uni and multi cellular organisms
Modern Classification System Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Binomial Nomenclature The 2 part scientific name for living things (Latin)
Species Organisms that can mate with one another and produce a viable off spring
Robert Hooke Discovers cells while looking at a cork though a Microscope, 1665
Anton Van Leeuwenhook Looked at pond water under a Microscope, 1673
Matthias Schleiden Botanist, determined all plants were made of cells, 1838
Theodor Schleiden Zoologist, Concluded all animals were made up of cells, 1839
Rudlof Virchow Concluded all cells came from other cells, 1858
Cell Theory 1. All living things are composed of cells 2. The cell is the basic unit of life 3. All cells come from other cells
Prokaryotic Have no nucleus or membrane bound Organelles
Eukaryotic Have a nucleus and other organelles
Bare Necessities Water, Carbohydrates, Proteins, Nucleic Acid, Lipids
Water All chemical reactions in a cell need water 70% of a cell is water
Macro-molecules Large substances formed by smaller molecules bonded together
Created by: owenbird